I have a 1 meter pair of Acoustic Zen Matrix II Interconnects in excellent condition.  They will come with the original packaging.   Cost $500 new, will sell for $325 OBO + shipping.  Locking connectors.  Beautiful cables.  I am using a stock photo, as my digital camera stinks, but I will provide an actual photo on request.  The connectors in the photo appear gold, but they are actually silver.  Check out the Acoustic Zen website for all the info.  
http://www.acousticzen.com/Details_Matrix_Reference.html